The details written by authentic Aamilheen and Kamileen in books regarding the avoidance of animal products (Tark-e-Haywanat) for the purpose of Chilla Kashi are as follows:
There are two types of Tark-e-Haywanat:
Jamali
Jalali
In Tark-e-Haywanat-e-Jamali, the items intended to be avoided include every type of meat, egg, fish, vinegar, raw or cooked onion, garlic, Jimaa (marital intimacy), and refraining from Nazar-e-Bad (the evil eye), etc.
In Tark-e-Haywanat-e-Jalali, one must refrain from every type of meat, egg, fish, vinegar, raw or cooked onion, garlic, honey, Mushk (musk), every type of Kushta (calx), and any grain grown using fertilizer. It also includes refraining from Jimaa and Nazar-e-Bad; food must not be eaten if cooked in a metal utensil, nor should a metal spoon be dipped into it. The cooking pot (Handi) must be made of clay, the ladle (Doi) must be made
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سَبَّحَ لِلّٰہِ مَا فِی السَّمٰوٰتِ وَ الۡاَرۡضِ ۚ وَ ہُوَ الۡعَزِیۡزُ الۡحَکِیۡمُ
“Whatever is in the heavens and the earth glorifies Allah, and He is the All-Mighty, the All-Wise.”
وَ سَخَّرَ لَکُمۡ مَّا فِی السَّمٰوٰتِ وَ مَا فِی الۡاَرۡضِ جَمِیۡعًا مِّنۡہُ ؕ اِنَّ فِیۡ ذٰلِکَ لَاٰیٰتٍ لِّقَوۡمٍ یَّتَفَکَّرُوۡنَ
And He has subjected (through His designed laws of nature) for you whatever is in the heavens and whatever is on the earth—all is from Him. There are indeed signs in that for people who reflect.
The Planetary Talismans
It is written in the book Sham‘-e-Shabistān-e-Razā that during the era of Alexander the Great (Dhul-Qarnayn), the tribe of Gog and Magog caused extreme Read more [...] 
The era of the Sufiya had begun among Muslims. In this passion, various types of Riyazat and Mujahada were being practiced to lift the veils of the senses from the middle and generate Khawariq (extraordinary/miraculous) powers. Consequently, books and terminology for this art were compiled, and such perfection was achieved that they left their predecessors (Sabiqeen) behind. Imam Buni’s ؒ book "Shams al-Ma'arif" is considered a voluminous tome on these matters. Thus, when efforts and Riyazat were dedicated to the secrets and mysteries of letters (Huroof), the result emerged that the celestial souls (Arwah-e-Falaki) and planetary temperaments (Tabai-e-Kawkabi) are manifestations of the Divine Heavens. Since the secrets of letters (Asrar-e-Huroof) are running and permeating through all the Asma-e-Ilahi (Divine Names), the secret of letters also manifested within all creations and writings. 
According to renowned books and authentic scholars, the word "Jafr" is an abbreviation of "Ja’far", referring to Imam Ja’far al-Sadiq (علیہ السلام)—the leader of the pious and master of the saints. Imam Ja’far al-Sadiq (علیہ السلام) was a descendant of Imam Hussain (علیہ السلام), the grandson of the Prophet Muhammad (ﷺ) and the martyr of Karbala. He was born in 80 Hijri and attained martyrdom in 148 Hijri in Madina.
Ilm al-Jafr – The Science of Letters
Ilm al-Jafr is essentially the science of letters, based on the principles of Ilm al-Huruf, and is used to uncover the events of the world. In fact, Ilm al-Jafr is often synonymous with Ilm al-Huruf. It is said that this profound knowledge allows one to make predictions about the future and derive well-calculated insights about any matter. Because of its nature, Ilm al-Jafr is also known as "Ilm 
In defining Ilm-ul-Huruf, revered spiritual guides, esteemed scholars, and accomplished masters have stated that these twenty-eight letters belong to the Name of the Almighty. The angels glorify Allah, the Exalted, using these names. It is said that when Allah, the Most High, commanded the Pen (قلم) to write everything that would occur until the Day of Judgment, the Pen placed its tip upon the Divine Tablet (Loh-e-Mahfooz), producing a luminous dot. That dot then elongated and became the letter Alif (ا). This is the mystery behind its radiant nature. The name "Allah" also begins with this very letter Alif.
According to scholars, alongside other branches of knowledge, Ilm-ul-Huruf was also taught to Prophet Adam (peace be upon him). The great spiritual elders have stated that the letters of the alphabet were first revealed in the Holy Quran in the form of disjointed letters (Huruf-e-Muqatta’at),